2 * Copyright (c) 2000, 2001 Alexey Zelkin <phantom@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include "namespace.h"
31 #include <sys/types.h>
40 #include "un-namespace.h"
43 #include "setlocale.h"
45 static int split_lines(char *, const char *);
48 __part_load_locale(const char *name,
51 const char *category_filename,
52 int locale_buf_size_max,
53 int locale_buf_size_min,
54 const char **dst_localebuf)
56 int saverr, fd, i, num_lines;
59 char filename[PATH_MAX];
61 size_t namesize, bufsize;
63 /* 'name' must be already checked. */
64 if (strcmp(name, "C") == 0 || strcmp(name, "POSIX") == 0) {
70 * If the locale name is the same as our cache, use the cache.
72 if (*locale_buf != NULL && strcmp(name, *locale_buf) == 0) {
78 * Slurp the locale file into the cache.
80 namesize = strlen(name) + 1;
82 /* 'PathLocale' must be already set & checked. */
84 /* Range checking not needed, 'name' size is limited */
85 strcpy(filename, _PathLocale);
86 strcat(filename, "/");
87 strcat(filename, name);
88 strcat(filename, "/");
89 strcat(filename, category_filename);
90 if ((fd = _open(filename, O_RDONLY | O_CLOEXEC)) < 0)
92 if (_fstat(fd, &st) != 0)
94 if (st.st_size <= 0) {
98 bufsize = namesize + st.st_size;
99 if ((lbuf = malloc(bufsize)) == NULL) {
103 (void)strcpy(lbuf, name);
105 plim = p + st.st_size;
106 if (_read(fd, p, (size_t) st.st_size) != st.st_size)
109 * Parse the locale file into localebuf.
111 if (plim[-1] != '\n') {
115 num_lines = split_lines(p, plim);
116 if (num_lines >= locale_buf_size_max)
117 num_lines = locale_buf_size_max;
118 else if (num_lines >= locale_buf_size_min)
119 num_lines = locale_buf_size_min;
126 * Record the successful parse in the cache.
128 if (*locale_buf != NULL)
131 for (p = *locale_buf, i = 0; i < num_lines; i++)
132 dst_localebuf[i] = (p += strlen(p) + 1);
133 for (i = num_lines; i < locale_buf_size_max; i++)
134 dst_localebuf[i] = NULL;
137 return (_LDP_LOADED);
152 split_lines(char *p, const char *plim)